Lock



G. F. MAYER.

LOCK.

APPLICATION FILED ocma, 1920.

Pmtedmy 4, 1922.

3 SHEETS-SHEET I.

55%, Ge'o/ e ./1447 r G. F. NIAYER.

LOCK. AP`PLlcAT|oN FILED 0cT.15. 1920.

Patent@ jiliy 4, 1922.`

" HTs-SHEET 2 fue ' la We al geo/e@ Wfz eases: K5@ #WM G. F. MAYER.

LOOK. APPLATIDN FILED OCT. 15, 1920. 1 ,421,522, Patented July 4, 1922,

3 SHEETS-SHEET 3. 2" z8 FIS? KWHTE@ STTES PATENT OWWQ.

GEORGE F. MAYER, OF CHICAGO, ILLINOIS.

LOCK.

Application lcd October 15, 1920.

T 0 @ZZ whom t may concern:

Be it lrnown that l, GEORGE l". hlhnrnn, a citizen of the United States,and a resident of the city of Chicago, county of Coolr, and State oflllinois, have invented certain new and useful Tinprovements in Locks,of which the following is a specification.

Mr invention relates to loclrs of a 'type comprising` a plurality oftumblers, each of which is adapted to be actuated for effect ing alocking operation and all of which may be moved out of lockingrelationship by operation in a certain predetermined sequence and order,and it is the principal object of my invention to provide an improvedconstruction and arrangement by reason of which an effective looking maybe secured, while at the same time the mechanism may readily bemanipulated by one having the required information.

Other objects will appear hereinafter.

The invention consists in the combinations and arrangements of partshereinafter described and claimed.

rhe invention will be best understood by reference to the accompanying'drawings forming a part of this specification, and in which7 Fig. 1, isa front elevation of my improved lock,

Fig. 2, a horizontal section taken through my improved lock near the topportion thereof, and Showing the lock mounted in position on a door,

Fig. 3, a vertical section taken substantially on line 3 3 of Fig. 2,

Illbig. el, a'horizontal section taken substantially on line /l-lof Fig.3,

Fig. 5, a vertical section taken substantially on line 5-5 of Fig. Eland showing, dotted lines, a changed position of certain of the parts.

Fig. 6, a verticle section similar to Fig. 5, with the lower portionbroken away, and showing another changed position of certain of theparts,

Fig. 7, another view similar to Fig. 5, also partly broken away andshowing still another changed position, and

Fig. 8, a detailed sectional view as taken on line 8-8 of Fig. 3, partlybroken away, and showing diagrammatically an electric alarm system inconnection with the lock.

leferrinoA to the drawings 15 indicates a S )ecication of LettersPatent.

Patented July d, 1922.

serial No. 417,070.

casing which is secured by angle bars 16 in a door 17 of any suitabletype for closing a doorway between posts a fragmentary portion of one ofwhich is shown in Fig. 2 and indicated by the numeral 1S. lillithin thecasing 15 there is mounted a frame-work comprising side plates 19 and 2Oand a transversely extending plate 21, as best shown in Fig. el. rllheside plates 19 and 2O are connected at their forward ends to a heavyface plate 22, and are connected at their rear ends to the rear face ofthe casing 15, as shown in Fig. 2. lilounted upon the upper edge of theplate 21 is a crossbar 23, which is in the form of an angle bar, as isshown in Figs. 5 and with ears 2e extending` upwardly at its endportions. The upwardly directed rear edge of the plate of the bar 23 isin the form of a rack, as is shown in Fig. 2. .el locking bolt 25 isslidably mounted upon the crossbar 23, such bolt being` slidably mounteYbetween the rac-lr portion of the bar 23 and the ears 24 of such bar, asis best shown in Fig. An arm 26 extends forwardly from the locking bolt25. being turned upwardly at its forward end and provided with aplurality of teeth on its upper end, whereby it is adapted to beoperated by a toothed wheel 27 which is revolubly mounted a short disapin 28 which is provided at its forward end with a thumb .nut 29. Thelocking bolt 25 is also provided with rack teeth upon its upper edge,shown in Fig. 2. which teeth correspond in shape and spacing vwith theteeth of the crossbar 23, the arrangement being such that a tumblerinserted in the space between the teeth of one bar is adapt ed also toengage the space between the teeth of the other bar for holding theparts against longitudinal movement with resject to each other. The bolt25 is provided one end with a pin 30, which is movable longitudinallytherewith, and which is adapted to be projected through an opening 31 inthe side of the casing 15 into contact with an auxiliary l cking bolt32, which,

vin turn, is adapted to be projected from the edge of the door intooperative engagement with a suitable keeper 33 mounted in the door post18. A spring 34 is provided for retracting the bolt 32 when the pin 30is withdrawn by the movement of the locking CIK bolt 25 toward the rightiii-Fig. 2, throughI the medium of'the thumb nut 29, as above described.

For locking the bolt 23 in either its projected or its retractedposition, as above described, I have provided a plurality of tumblers35, the forward ends of which are mounted in position. upon a crossplate 3G above the edge of the plate 2l, is clearly shown in Figs. 5 and6. The tumblers 35 are supported at their rear ends by means ofvertically disposed llevers 37, which are pivotally mounted by means ofacross r'od 38 extending between the frame members 19 and 20, as isbestsho-wn in Fics. 3 and 5. As is clearly shown in Fig. 3, the upperend of each of the levers 37 is bifurcated so as toprovide a suitableseat for the rear endY portion ofthe tumbler 35. As is best shown inFig. 2, each' of the tuniblers 35 is provided with. shoulders near itsrear end, whereby a forward movement of the upper end of the lever 37serves to push the tumbler forwardly. As is best shown in 5, when thetumbler 35 is in its rearmost position, its lower edge rests upon' theplate 36, serving lto hold the tumbler out of engagement with the rackformed upon the locking` bolt 25, but when thev tumbler' is movedforwardly, a notch 39 in the lower edge of the tumbler is brought .intoengagementY with the plate 36, permitting the forward end of the tum-yblerto move into position between`- the teeth of the rack barcarried bythe locking bolt. When the lever 37 is brought back to normal posi-tionafter having produced a forward movement ofthe tumbler, as abovedescribed, the tumbler is prevented from returning with the lever byreason of 'the engagement of theI notchy 39 with the plate 36.

Means is provided for operating each of the levers 37 independently ofthe remaining levers,vsuchy means comprising a plurality ofpush' barsLil() which extend through suitable openings in the face plate 22, as isclearly shown in Fig. l. In the construction shown, twelve of the pushbars 40 are brovid'ed-, arranged in three tiers, as shown in Fig. 5,each tier comprising four push bars, as shown in Fig. ll. Each of thepush bars 40 of the upper two tiers is provided with offset rear endportions 4l extending vertically so as to have a vsuitabley connectionwith the lower end of one of the levers 37, asis best indicated in Figs.3 and 5. By the use of the push bars 40, any one of the levers 37 can begiven a rocking movement in counter-clockwise direction, as shownI inFig. 5,v serving to cause a forward movement of the correspondinglypositioned tumbler unless such tumbler is already at they limit of itsforward movement.' Thus, any oneof the tumblers 35 which 'is providedwith the notch 39 in its lower face, may be moved forward into lockinglposition independently i to the rod lll, as hereinafter described.`rllhe of the remaining tumblcrs. Springs 4Q, are mounted upon the pushbars 40, bearing at their rear ends upon the plate 2l and at theirforward ends having a bearing against suitable` pins 434, whereby thepush bars are adapted to return to normal position when released afterhaving been pushed rearwardly.

Means is provided for retract-ing the tumblers35 from locking'position.This means 75 comprises a rod 44 extending across the lock, in positionto contact the lower edges of the tumblers 35 when in their forwardlocking posit-ion, as shown in Fig. 5. The rod t is mounted in slidebars -l-5 and 4:6, as is best shown in F ig. l. These bars are slidablymounted between vertically extending ribs e7 and 4 8 formed onthe innerfaces of the side plates 19 and 20.V Anti-friction rollers 4-9 aremounted on the bars 45 and 43 for providing a` bearing for the bars`between the plates 19 and 20. rit' their upper ends, the bars 45 andil@ are connected by a cross rod 50 by which motion is transmitted rod50 in turn is moved by an arm 5l having a tapered forward end extendingunderneath said rod 50, being supported in position bya crossrod 52 atits forward end, and being pivotally connected at its rear end with avertically disposed arm 53 mounted on one of the levers 37. As will bereadily understood, when the lever 37 upon which the vertical arm 53 ismounted, is turned onl its pivot by a backward push upon the appropri-Yl0() ate push bar 40, the cross rod 50 is caused to V .rise by reasonof the inclination vof the con-v tacting face of the arm 5l, servingthus 4to raise the cross rod fiel and the various tumblers which may beresting thereon, as the tumbler 35 shown in dotted' lines in Fig. 5 isseento be doing. It is thus seen that the several tumblers vare adaptedtoV be moved forwardly into locking position by the use of theappropriate push lbars 40, .11H each tumbler being given thisA movementiu- (lependently of the relnainii'ig tumblers, but W which may be thatall of the tumblers n.)

standing in locking position are adapted to be raised out of lockingposition by the use of the push bar'correspondingto thev lever 37 upoirwhich thev arml is mounted.

As willrbe appreciatechthe arm 53 may be shifted from one to another ofthe levers 37, as may be desired, being removably l2()v CIK tumblers 35through the medium of the cross rod 414, the tumblers are prevented fromrising` their rear ends by means of a cross rod 56 mounted in lugs 57carried by the side plates 1 9 and 20 in position directly above thetumblers, as is shown in Figs. 2 and 5.

Means is also provided for moving the tumblers 35 backwardly out oftheir locking position upon their upward movement. rlhis means comprisescams 58 formed on the upper faces of tumblers 35, as such tumblers areillustrated in Figs. 5 and 6. A cross rod 59 is movably mounted directlyabove the cams 58 between lugs 60 formed on the side plates 19 and 20,coiled springs 6l being connected between the rod 59, and suitableportions of the framework, for holding the said rod 59 yieldinglydownward. When the tumblers 35 are raised at their 'forward ends, thecams 58 are brought into contact with the rod 59, serving to place thesprings 6l under tension, such springs in turn serving to cause abackward movement of the tumblers by reason of the inclination of thebearing faces of the cams 58. It is thus seen that by a backwardmovement of any one of the push bars 4:0, the lever 37 of which isprovided with a tumbler 85, such tumbler 35 is moved forward intolocking position for holding the bolt against movement in eitherdirection, the lever being withdrawn backwardly by the action ot thespring 42 when released. Upon a subsequent backward movement of that oneof the push bars 40, the lever 87 of which carries the arms 53 and 51,all of the tumblers which have, previously thereto, been moved forwardto their locking position, will be retracted from locking position so asto permit a movement of the bolt 25, through the medium ot the handle29.

As is best shown in Fig. 7, a tumbler 62 is adapted to be mounted inposition in lieu of one or more of the tumblers 35. ln the constructionshown, the tumbler 62 is of precisely the same form as the tumbler 35but is mounted in inverted position. As shown in said Fig. 7, thetumbler 62 rests upon the cross bar 36, with its forward end inengagement with the rack formed upon the locking bolt 25. rihe forwardend portion of the tumbler 62 is in the form of a cam, whereby, upon a`forward movement or" the tumbler 62, the end oit the tumbler is carriedupward out or' engagement with the locking bolt 25, as indicated indotted lines in said Fig. 7. The tumbler 62 is provided with a cam 63upon the upper tace of the tumbler in the position the tumbler occupiesin Fig. 7, the cam corresponding to the cam 58 upon its opposite tace,which is operative in the inverted position of the tumbler. The cam 63operates upon the tumbler 62 for moving the tumbler backward when raisedat its forward end in precisely the same manner as that alreadydescribed in 'connection with the cam 58 upon the tumbler .35. Thetumbler 62 is provided with a notch 6a on its lower tace, in positiondirectly above the cross rod 411-. the tumbler 62 accordingly beingadapted to remain in locking position when the cross bar #la is movedupwardly. In this way, the forward movement ot the arms 5l and 53,carried by one of the levers 87, is eiilected, without causing releaseof the tumbler 62. it will be appreciated, from an inspection of Fig. 7,that upon a backward movement oi the push bai' -10 connected with one otthe levers 37 which is provided at its upper end with a tumbler 62, suchtumbler will be moved forward out of locking position, such movementbeing effected against the action of the springs 6l, which springs willserve to move the tumbler backward again into locking position when theactuated push bar 4:0 is released, and returned to normal position byits spring i-2. nasmuch as the tumbler 62 is merely one ot the tuinblers35 in inverted position, it will be appreciated that any one or more otthe tumbler-s 35 may be inverted as desired, so as to obtain thealterna-.tive operation as above described.

TVith the tumblers 35 and 62 in position, an operator knowing the propermethod of unlocking the bolt 25, will push backwardly upon the push bart0 corresponding with the lever 37 carrying the arms 53 and 5l, and atthe same time will push upon the appropriate push bar or push barscorresponding to the levers 37 which carry tumblers 62. In this way allof the tuinblers 35 which may have previously been moved forward intolocking` position will be moved backwardly out of locking positionthrough the action of the arm 5l, and at the same time one or moretumblers 62 will be moved vtorwardly out of locking position, thusreleasing the bolt 25 itor operation by the thumb piece 29. lVlien anunauthorized attempt is made to open the lock, the backward movement ofeach ot the push bars et() corresponding with levers 37 provided withtumblers 35 will move an additional tumblei` 35 into locking position,serving to make the device more secure rather than to have any tendencyto release the bolt.

Means is provided for giving an alarm at any and all times when one ofthe push bais el() is operated for releasing the lock. This means, inthe construction shown, comprises a bar slidably mounted between theside plates i9 and 20, as is best shown in Fig. 3.

The bar 65 is to be made of metal which is Y" an effective conductor ofelectricity. rilhe bar is mounted directly in the rear of the levers 37at their lower end portions, so as to be moved backward into engagementwith contacts 66 which are connected in Icircuit 69 havingascrew-threaded scat in'y therear face of the casing 15 adjacent to -thebar 65.' By moving the screw 69 forward into engagement with the bar65,- wliich infiturn' is kin contact with the levers 37; the levers areheld against a rocking' movement, serving to prevent an operation-'ofthe" loclr by the' use'of the push bars. p Y

Means is also provided fori'preventingan operator from opening the lockby pushing all of the push bars' 4l() backwardfiir unison. This meanscomprises a vertically extendingbar 70,L (see F ig. 5), which isprovided with a hook 71: at its upper end which enga-ges` the cross barv50, asis best shown in Figs." and 5; The bai-70 is' provided inits frontface with aplurality of notches 72, which( are in a positionv and of aVshape to receive therein lsuitable portions of the' pushbars all), thebar 70 being mounted in' appropriate position for this purpose. y ln'the lconstructionlshown', the notches 72j are adaptedto be engaged byshoulders 78"formedin1the" push bars 40, as is best shownin Fig'.- 4.-

When an attemptis made` to press all lof thebars et() backwardly,three'of such bars are brought into engagement with the'io'd 70serving'to hold thef rod 70 againstupward movement,- which in turnservesto' hold` the cross rod 50' against upward movement, thuspreventing the' b'ar 44 from actingI to raise the tumblers' 85. TWhileIhave' shown in my drawings only one ofthe bars 7 0, it will beunderstood that additional bars of this `type may be used if desired.

Means is provided for operating the tumblers for ieleasingthe bolt 25vfrom the inner face. of the casing'15 without the use' ofthe'v push bars40'. This means comprises a.y yoke lever 74; mountedv upon pivot pins 75oarri'ed by the sidey plates 19 and 20, vas isbest shown in Fig. 4f. Thearmsof the lever 7l' are provided at their forward ends with a cross rod7 6 which is'niounte'd in posi-tion underlying thecains 581er' 63 ofthetumblers' 35- and 62, respectively. A spring 77 is connected with thelever 74 atits forward end, serving tohold the lever yieldingly in suchposition that the cross bar 7 6 shall press very lightly if at all upoirthe tumblers. When lever 7 l is depressed' at itsrear end, as is showniir -F ig. 6', th'ecross rod 7 6k exerts anI upward pressure upon thetumblers, serving to raise the tumblers'out of locking position'. Themeans for` operating the lever 75 inithis manner comprises an arm 78ris- 1,4211 ,ses l ing from the cross bar of the' yolre lever 7 4V.'Means isprovided for depressing the arm 7 S and for turning the pinion27 for operating the locking bolt 25. This means comprises a pin 7 9pivotally connected withA the toothed wheel 27 and extending backwardlytherefrom, being provided with a. lug S0 on its lower face which engagesthe upper end of the arm 78. r1`he rearfend of the pin79` extendsbackwardlythrough ai slot 8l in the wall `of the casin'gl, beingprovided on'its outerend with a thumb 'piece 82. By a downward movementvof the thumb piece 82,-' through the medium of the lugand the arm 7 8,the lever 74; is turned about its pivot pins 75 for raising the tumblers35 and 62 by the'l action ofthe cross rod 7 6. lVhile the'l tumblers 35and 62 are held in raised posi y tion in this way, the thumb piece 82can 'be turned, serving in turn to rotate the toothed wheel 27 formoving the bolt25 longitudinally either into or out of position for pro'jectin'g the' auxiliary bolt 32.

lVhile l have illustrated and described the preferred form ofconstruction for carrying my invention into eifect, this is capable ofvariation and modification without departing from the spirit of theinvention. l, there# for, .do not wish to be limited to the precisedetails of construction set forth', but de'- I sire to avail myselfof'suchvariationsand modifications as come within the scope of thevappended claims.

Having described my invention, what' I claim as new and desire to secureby Let# ters 'Patent is 1. A lo'clr coiiiprising a slidably mountedbolt; manually operablemeans` for" moving said bolt; a 'longitudinallymovable tumbler mounted adjacent to' said lbolt adapted,

by a movement a'cioss'the bolt, vto lockl the bolt against movement;means for mov* D the tumbler into locking position; and similarlyactuating independently I:ting means for roclaing the tumbler out oflocking posi tion. substantially as described.

2. A lock comprising a slida ly mounted bolt; manually operable meansfor movingsaid bolt; a long'itudinallyv movable tumbler mounted adjacentto' saidfboltv adapted,- by` a movement across thebolt, to lock the boltagainst movement; a push bar adapted, by a movement in one direction, tomove the" tumbler into loekingposition; and a second independentlyactingpush' bar adapted; by

tumbler into locking position; a spring for returning said push bar tonormal position; the arrangement being surh that upon the return oi.lthe push bar the tumbler remains in locking position; and a secondsimilarly actuated independently acting push bar adapted; by anoperative movement to rock the tumbler out of locking position,substantially as described.

4. il loci: comprising` a slidably mounted bolt; manually operable meansfor moving said bolt; a longitudinally movable tumbler mounted adjacentto said bolt adapted; by a movement toward the bolt; to lock the boltagainst movement; means for moving the tumbler into position to locksaid bolt; latrhing means `for holding said tumbler against retractiontrom locking position; and spring actuated means Ytor retracting saidtumbler when released from said latching means; substantially asdescribed.

A lock comprising a slidably mounted bolt; manually operable means formoving said bolt; a longitudinally movable tumbler mounted adjacent tosaid bolt; adapted, by a movement across the bolt; to lock the boltagainst movement; means for moving the tumbler into position to loclrsaid bolt; means adapted upon rocking movement ot said tumbler to causea retraction thereof; latching means for holding said tumbler against.retraction until rocked; and means for rocking said tumbler forreleasing it for retraction; substantially as described.

6. il lock comprising a slidably mounted bolt; manually operable meanstor moving said bolt; a longitudinally movable tumbler mounted adjacentto said bolt adapted; by a movement toward the bolt; to lock the boltagainst movement; means for moving the tumbler into position to locksaid bolt; a spring adapted upon rocking movement or said tumbler tocause a retraction thereolE 'from locking position; latching mea-ns forholding said tumbler against retraction until rocked: and means ttorrocking said tumbler Yfor releasing it for retraction, substantially asdescribed.

'.7 lool; comprising a slidablv mounted bolt; manually operable meanstor moving said bolt; a longitudinally movable tumbler mounted adjacentto said bolt and adapted, by a movement lovvard the bolt, to lock thebolt against movement; a push bar adapted, by a movement in onedirection. to move the tumbler into position to lock said bolt: aspring` adapted.. upon rocking movement or' said tumbler; to cause aretraction thereof from locking' position; latching means for holdingsaid tumbler against retraction un` til rocked; and means operableindependentlvY et said push bar tor rockingsaid tumbler for releasing ittor retraction; sub stantially as described.

8. A loel comprsin slidably mounted bolt against movement;

bolt; manually operable means tor moving said bolt; a longitudinallymovable tumbler mounted adjacent to said bolt and adapted, by a movementtoward the bolt; to lock the bolt against movement; means for moving thetumbler into position to lock said bolt; a spring adapted; upon upivardmovement of said tumbler; to cause a retraction thereo'l" from lockingposition; means for holding said tumbler against retraction until movedbac-lrivardly; and means operable independently of said first namedtumbler-moving means for raising said tumbler t'or releasing it Yforretraction; substantially as described.

9. A lock comprising a slidably mounted bolt; manually operable meansfor moving said bolt; a longitudinally movable tumbler mounted adjacentto said bolt and adapted, by a movement toivard the bolt;'to lock thebolt against movement; a push bar adapted; by a movement in onedirection, to move the tumbler into position to lock said bolt; a springadapted; upon upward movement of said tumbler, to cause a retractionthereof from locking position; means for holding said tumbler againstretraction until moved upwardly; and a second push bar operableindependently ot said lirst named push bar for raising said tumbler forreleasing it for retraction1 substantially as described.

l0. A lock comprising a slidably mounted bolt; manually operable meansfor moving said bolt; a longitudinally movable tumbler mounted adjacentto said bolt and adapted; by a movement across the bolt; to lock themeans for moving the tumbler into locking` position; and carnoperatedmeans for roekingthe tumbler so that same can be moved out ot lockingposition7 substantially as described.

ll. A loclr comprising a slidably mounted bolt: manually operable meansYlor moving said bolt; a longitudinally movable tumbler mounted adjacentto said bolt and adapted; by a movement toward the bolt; to lock theVbolt against movement; means tormoving the tumbler into position tolock said bolt; a spring adapted; upon a rocking movement oli saidtumbler.r to cause a retraction thereoii'irom locking position; latchingmeans for holding said tumbler against retraction until rocked upwardly;and cam-operated means for rocking said tumbler so that same can beretracted substantially as described.

l2. A lock comprising a slidably mounted bolt; manually operable meanstor moving said bolt; a longitudinally movable tumbler mounted adjacentto said bolt and adapted by a movement tovvardthe bolt; to lock the boltagainst movement; a push bar adapted, by a movement in one direction; tomove the tumbler into position to lock said bolt; a spring adapted, uponupwardV movement of said tumbler, to cause a retraction therellO of fromlocking position; means for holding said tumbler against retractionuntill moved upwardly; and cam-operated means operable independently olsaid push bar for raising said tumbler for releasing it for retraction7substantially vas described.

13. A lock comprising a slidably` mounted bolt; manually operable meansfor moving said bolt; a longitudinally movable tumbler mounted adjacentto said bolt and adapted, by a movement toward the bolt, to lock thebolt against movement; a push bar adapted, by a movement in onedirection, to move the tumbler into position to lock said bolt; a springadapted; upon upward movement of said tumbler, to cause a retractionthereot romaloclring position; means lor holding said tumbler againstretraction until moved upwardly; a second push bar operablevindependently of said first named push bar; a cam ,adapted to be movedby said second Apush bar; and means .operatedby said cam for raisingsaid tumbler for releasing it for retraction;substantially as described.

vlll. A lock comprising, a slidably mounted bolt; manuallyoperablefmeans for moving said bolt; notches insaid bolt;I alongitudinally movable tumblermounted adjacent to said bolt adapted tobe moved intoposition Atoy engage said notches in the bolt for holdingthe bolt either in=locking position or in Lretracted position; means tormoving` the Jtumbler into locking position; and independently v.actingmeans for moving the tumbler out of locking position, substantially asdescribed. f

15. A lock comprising a slidably mounted bolt; manually operable meansfor moving said bolt; a plurality of longitudinally movable tumblersmounted adjacent to said bolt, any one of which is adapted to be movedinto position to'lock said bolt against movement; and means for each oitsaid tumblers forimoving a tumbler into locking position independentlyof the remaining'tumblers; and cam operated means'for moving all ot saidtumblers in unison out of locking position; substantially asdescribed.

16. A lock comprising a slidably mounted bolt; manually operable -meansfor moving said bolt; aplurality of longitudinally movable tumblersmounted adjacent to said` bolt, any one of which is adapted to be movedinto position to lock said bolt against movement; apush bar foreach ofsaid tumblers ffor moving a tumbler into locking position independentlyof the remaining tumblers; and a similar additional push bar operableindependently of said first named push bars andhaving cam'means YJformoving-all of said tumblersin unison out `oiflocking position,substantially asdescribed.

117. AlQCk-COmprising--a slidably mounted bolt; manually operable means`for moving vsaid; belt a-plnrazltvof longitudinally -mtu'- abletumblers mounted adjacent to said bolt, any oneof which is adapted to bemoved into position to lock said bolt against movement; means for eachof said tumblers for moving a tumbler into locking positionindependently of the remaining tumblers; cams on said tumblers adapted,upon upward movement of the tumblers, to move the tumblers out oflocking position; and means acting independently' ,of said llirst namedtumbler-moving means for raising all or said tumblers in unison lformoving them .out ofloclring position, substantially as vdescribed. 1

18. A lock comprising a slidably mounted bolt; manually operable meansfor moving said bolt; a longitudinally movable tumbler having a cammounted adjacent toV said bvoltiadapted7 when in normal position; tolock said bolt against movement, but adapted, when moved toivard saidbolt. tov ride out of locking position; and means `for moving saidtumbler toward said tially as described.

19. A lock comprising a slidably mounted bolt; manually operable meansfor moving said bolt; a longitudinally movable tumbler having a cammounted adjacent to said .bolt adapted1 when in normal position, tolocl; said bolt against movement; but adapted,

lwhen moved toward said bolt; toi-ide out oit looking position; means`lor moving said -tumblei'itoivaid said bolt; and other automaticallyacting Jfriction',means for returning said tumbler to locking position,substantially as described.

20. A lock comprising a slidably mounted bolt; manually operable meansfor moving said bolt; a longitudinally movable tumbler having a cammounted adjacent to said bolt adapted. when in normal position; to locksaid bolt against movement, but adapted.y when moved towards said bolt;to ride out ot locking position; means vtor moving said tumbler towardsaid bolt; .and spring operated 'Irivtionally engaging means 'forreturning said tumblerzto locking position, substantially as described.Y

2l. A lock comprising a slidably mounted bolt; manually operable meansfor moving said bolt; a longitudinally movable tumbler having a cammounted adjacent to saidbolt adapted; When i-n normal position, to loclrsaid bolt against movement but adapted. when moved tovvard said bolt. toride out of locking position; a second longitudinally bolt, substan-lmovable tumbler mounted adjacent to said bolt adapted, by a movementacross the bolti to lock the bolt against movement; means for movingeither of the tumblers toward said bolt independently of the othertumbler; and automatically acting friction means for returning` 4sai-dfirst named tumbler to locking position, substantially as described.

29,. A lock. comprising a slidablv-InQunted cfr bolt; manually operablemeans for moving said bolt; a longitudinally movable tumbler having acam mounted adjacent to said bolt adapted, when in normal position, tolock said bolt against movement, but adapted, tv ien moved toivard saidbolt, to ride out of looking position; a second longitudinally vmovabletumbler mounted adjacent to said bolt, adapted, by a movement toward thebolt, to lock the bolt against movement; means 'l'or moving either o'lthe tumblers tov-'ard said bolt independently ot the other tumbler;latching means tor holding` said second tumbler against retraction 'fromlockl ion; and automatically acting means tor returniiug said firstnamed tumbler' to locking position, substantially as described.

2S. A. locl; comprising a slid-ably mounted bolt; manually operablemeans tor moving said bolt; a. longitudinallj,T movable tumbler having acam mounted adjacent to said bolt adapted. when in normal position, tolocl said bolt against movement, but adapted, when moved toivard saidbolt, to ride out of locking position; a. second longitudinally movabletumbler mounted adjacent to said bolt adapted, by a movement toward thebolt, to lock the bolt against movement; means Ator moving either oi thetumblers toward said bolt independently ot the other turgibler;automatically acting means 'for returning said irst named tumbler tolocking position; latching means for holding said 'second tumbleragainst retraction from locli4 ing position; otherI means adapted, uponup`r ward morement ot said second tumbler, to cause a retractiontherein" 'from locking position; and means tor raising said secondtumbler, substantially as described.

Q4. It lool: comprising av slidably mounted bolt: 'manually operablemeans tor moving said bolt; a plurality ot ,longitudim lly movabletumblers mounted adjacent to said bolt, some having rams thereon, aplurality oit which tumblers are adapted. by a movement towardrtluebolt, to lock the bolt against movement, and the remainder ot whichtumblers having cams are adapted, when in normal position, to lock thebolt against movement. but are adapted, ivben'moved toivard said bolt,to more out ot locking position; independentlv operable means for eachot said tumblers Yfor moving the tumbler toivard the bolt; automaticallyoperating means for retraeting tie tumblers avhich are moved out oflocking' position by movement tovfard the bolt; l other cam means tormoving out ot locl ng position in unison the tumblers vfhich are adaptedto locli upon movement tovfard the bolt; substantially as described.

25. A lock comprising aslidably mounted bolt; manually operable meansfor moving said bolt; a tumbler adapted, by a movement toiv rd the boltWhen in one position.,v

to loclr the bolt against movement, and having cam means adapted, whenin reversed position, 'to locl the bolt against movement when inretracted position and to ride out ot locking position when moved towardthe bolt; and means for moving said tumbler in either position towardsaid bolt, substantially as described.

26. A lock comprising a slidably mounted bolt; manually operable means'tor moving said bolt; a tumbler reversibly mounted in position adjacentto said bolt adapted, upon a movement toward tbe bolt when in oneposition, to move doiviiwardly into locking engagement With the bolt torholding the bolt against movement, and having cam means adapted, when inreversed position, to loel the bolt against movement when in retractedposition and to ride upwardly out ot locking position when moved towardthe bolt; and means tor moving said tumbler in either position tovvardsaid bolt, substantially as described.

27. A lock comprising a slidably mounted bolt; manually operable means'for moving said bolt; a longitudinally iovable tumbler mounted adjacentto said bolt adapted, when in normal position, to lock said bolt againstmovement; a cam on said tumbler adapted, upon a movement oit the tumblertoward the bolt, to raise the tumbler out ot engagement with the bolt;and' means tor moving` said tumbler toward said bolt, substantially asdescribed.

28. A lock comprising a slidably mounted bolt; manually operable meanstor moving said bolt; a longitudinally movable tumbler mounted adjacentto said bolt adapted; When in normal position, to lock said bolt againstmovement; a cam on said tumbler adapted, upon a movement ot the tumblertoward the bolt, to raise the tumbler out ot engagement with the bolt;means tor moving said tumbler toward said bolt; a second cani on saidtumbler; and a spring pressed part Yadapted to be. displaced by said camagainst the action ot the spring upon the movement. oit' the tumblertoward the bolt tor returning the tumbler to locking position;substantially as described. Y

29. lock comprising av slidably mounted bolt; a rack bar connectedtherewith; a supporting member adjacent said rack bar; a. plurality ofmovable tumbl ers in inoperative position resting on said supportingmember and adapted, upon a movement tol Ward the rack bar, to drop intoengagement; therewith tor locking the rack bar against movement; andmeans for moving said tumblers into vand out @flocking position,substantially as described, Y

30. A lock comprising a slidably mounted bolt; a rack bar connectedtherewith, a` supporting member adjacent said rack bar; a plurality ofmovable tumblers in inoperllO ative position resting on said supportingmember and adapted, upon a movement toward the rack, bar, to drop intoengagement therewith for locking therack bar against movement; meansYfor moving said tumblers independently ot' each other toward said rackbar; and other means for moving said tumblers in unison out oflockingposition, substantially described.

31. A lock comprising a slidably mounted bolt, a rack bar connectedtherewith; a plurality of movable tumblers adapted, upon a movementtoward the rack bak, to drop into engagement therewith for locking therack bar .against movement; means tor moving said tumblers independentlyeach other toward said rack bar; other means for moving said tumblers inunison out ot locking position; an additional tumbler adapted, when atthe limit ot its motion -away from the rack bar, to lock the boltagainst movement and adapted, upon a movement toward the rack bar, tomoveupward out oit engagement therewith; and means for moving said lastnamed tumbler independently of the remaining tumblers, substantially asdescribed.

32. A lock comprising a slidably mounted bolt; a plurality of tumblersfor locking said bolt against movement; means for operating saidtumblers for locking and unlocking said bolt; and means for holding saidtumbler-operating means against movement, serving as a double lock,substantially as described.

33. A lock comprising a slidably mounted bolt; a plurality of tumblersfor locking said bolt against movement; a plurality of levers formovingsaid tumblers; and a bar adapted to be held in position to preventthe swinging of said levers 'for moving the tumblers, substantially asdescribed.

A lock comprising a slidably mounted bolt; a plurality of tumblers forlocking said boltagainst movement; a lever for each of said tumblers foroperating it independently of the remaining tumblers; an arm adapted tobe mounted on any one of said levers; and means actuated by said arm formoving said tumblers in unison out oi locking position, substantially asdescribed.

A lock comprising a slidably mounted bolt; a plurality of tumblers forYlocking said bolt against movement; a lever for each of said tumblersfor operating it independently ,of the remaining` tumblers; an armadapted to be mounted on any one of said levers; a cross bar extendingunderneath said tumblers; and means connected with said cross bar andco-operating with said arm for moving the tumblers out of lockingposition, substantially as described.

36. A lock comprising a slidably mounted bolt; a plurality of tumblersfor locking said bolt yagainst movement and adapted, by ijipwardmovement, to release the bolt; a leverior each .of said tumblers formoving it into locking position independently of the remaining'tumblers; and means extending beneath said tumblers acting independentlyof said levers .for raising the tumblers in unison out of lockingposition, substantially as described. Y

37. A lock comprising a slidably mounted bolt; a plurality of tumblersfor locking said bolt against movement and adapted, by upward movement,to Yrelease the bolt; a lever for each of said tumblers for moving itinto locking position independently of the Vremaining tumblers; a pairof slide bars mounted in vertical position on opposite sides of the bankof tumblers; a cross bar connecting said slide bars rigidly together andpositioned directly below said tumblers; and means for moving saidkcross bar upwardly for raising said tumblers out of locking position,substantially as described.

38. A.. lock comprising a slidably mounted bolt; a plurality oftumblersV for locking said bolt against movement and adapted, by upwardmovement, to release the bolt; a lever for each of said tumblers formoving it into locking position independently of the remaining tumblers;a pair ot slide bars mounted in vertical position on opposite sides ofthe bank of tumblers; a cross bar connecting said slide bars rigidlytogether and positioned directly below said tumblers; a second cross barextending between said slide bars; and a cam arm movable underneath saidsecond cross bar for moving it upwardly for raising said tumblers 'outof locking position, substantially as described.

39. A lock comprising a frame; a bolt slidably mounted therein; aplurality of tumblers mounted on said frame for locking said boltagainst movement and adapted, by upward movement, to release the bolt; alever for each of said tumblers for moving it into locking positionindependently of the remaining tumblers; a pair of slide bars mounted inkvertical position on opposite sides of the bank of tumblers; a cross'bar connecting said slide bars rigidly together and positioned directlybelow said tumblers; anti-friction rollers interposed between said slidebars and said frame; and means for moving said cross bar upwardly forraising said tumblers out of locking position, substantially asdescribed.

40. A lock comprising a frame; a bolt slidably mounted therein; aplurality of tumblers mounted on said frame for locking said boltagainst movement and adapted, by upward movement, to release the bolt; alever for each of said tumblers for moving it into locking positionindependently of the remaining tumblers; a pair of slide bars mounted invertical position `on opposite side's of the bank of tumblers; a crossbar connecting said slide bars rigidly together and positioned directlybelow said tumblers; an additional lever adjacent to said first namedlevers; a cam arm pivotally mounted on said second named lever andextending forwardly therefrom; a support on said iframe for the forwardend portion of said pivoted cam arm; and a second cross bar extendingbetween said slide bars and adapted to be engaged by said cam arm formoving the first named cross bar upwardly for raising said tumblers outof locking position, substantially as described.

41. A lock comprising a slidably mounted bolt; a plurality of tumblersfor locking said bolt against movement and adapted, by upward movement,to release the bolt; means for operating said tumblers; and means eX-tending beneath said tumblers operable from the rear face of the lockJfor raising said tumblers independently of the rst named tumbleroperating means, substantially as described.

42. A lock comprising a slidably mounted bolt; a plurality of tumblersfor locking said bolt against movement and adapted, by upward movement,to release the bolt; means for operating said tumblers; a cross bar eX-tending underneath said tumblers adapted, by an upward movement, toraise the tumblers out of locking position; and means operable from therear face of the lock for moving said cross bar upwardly and then movingthe bolt into or out of locking position, substantially as described.

48. A lock comprising a slidably mounted bolt; a pinion by rotation ofwhich said bolt is moved into and out of locking position; a pluralityof tumblers for locking said bolt against movement and adapted, byupward movement, to release the bolt; means for operating said tumblers;a cross bar extending underneath said tumblers adapted, by an upwardmovement, to raise the tumblers out of locking position; a pin connectedwith said pinion but extending rearwardly therefrom for turning saidpinion; and means actuated by a downward swinging of said pin 'formoving said crossbar upwardly for moving the tumblers out of lockingposition, substantially as described.

44. A lock comprising a slidably mounted bolt; a plurality of tumblersfor locking said bolt against movement; a push bar for each of saidtumblers for operating it; means acting independently of said push barsfor moving the tumblers out of locking position; and means serving,while one of said push bars is held at the limit ot' its operativestroke, to prevent operation .of said second named tumblermoving means,substantially as described.

45. A lock comprising a slidably mounted bolt; a plurality of tumblersfor looking said bolt against movement; a push bar for each of saidtumblers for operating it; upwardly movable means acting independentlyof said push bars for moving the tumblers in unison out of lockingposition; and means serving, while one of said push bars is held at thelimit of its operative stroke, to prevent upward movement of said secondnamed tumbler-moving means, substantially as described. i

46. A lock comprising a slidably mounted bolt; a plurality of tumblersfor locking said bolt against movement; a push bar for each of saidtumblers for operating it; a cross bar underlying said tumblers andadapted, by an upward movement, to move said tumblers in unison out oflocking position; and a vertically disposed member adapted to moveupwardly with said cross bar and provided with a notch adapted, byengagement with one of said push bars, to prevent upward movement of themember when the push bar is in its rearmost position, substantially asdescribed.

47. A lock comprising a slidably mounted bolt; a plurality of tumblersfor locking said bolt against movement; a push bar for each of saidtumblers for operating it; a cross bar underlying said tumblers andadapted, by an upward movement, to move said tumblers in unison out oflocking position; and a hooked member adapted to be removably insertedin position adjacent to one of said push bars with its hooked portion inengagement with said cross bar, said member being provided with a notchadapted to be engaged by one of said push bars when moved to itsrearmost position for preventing upward movement of' the cross bar,substantially as described.

In testimony whereof l have signed .my name to this specification inthepresence of two subscribing witnesses.

GEORGE F. MAYER.

Vitnesses JOSHUA R1 H. Po'r'rs, CLARENCE E. THREEDY.

